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ID = 13837
Brand: Siemens (& Halske, -Schuckert Werke SSW, Electrogeräte); Berlin, München
Tube type:  TRIODE (Detail uncertain) 
Identical to BE
First Source (s)
1922 : Saga of the Vacuum Tube, Tyne p.432

Base SPECIAL TUBEBASE in general (Codex=sp)
Filament Vf 4.8 Volts / If 2.1 Ampere
Description Für Multiplex-Telefonie. 
Tube prices 1 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   

be_sock.png BE: Tabu Röhren-Codex, 1948
Anonymous 15 Collector

BE: Die Elektronenröhren, Möller, 1922
Anonymous 15 Collector

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